TY - JOUR PY - 1989// TI - Effects of noise on a simple visual attentional task JO - Perceptual and motor skills A1 - Britton, L. A. A1 - Delay, E. R. SP - 875 EP - 878 VL - 68 IS - 3 N2 - 15 male and 15 female subjects scanned an array of lights during one of three types of white-noise conditions (continuous, 1-Hz pulse rate, and 10-Hz pulse rate) at 50, 60, 70, 80, and 90 dB. Detection of light stimuli increased under the lower intensities and decreased under the higher intensities in the continuous and the 1-Hz pulse-rate conditions, but decreased as intensity increased in 10-Hz pulse-rate noise. Detection of peripheral stimuli was greatest during continuous noise and lowest during 10-Hz pulse-rate noise. These data are interpreted in terms of changes in attentional focus which result from altered levels of arousal.

Language: en

LA - en SN - 0031-5125 UR - http://dx.doi.org/10.2466/pms.1989.68.3.875 ID - ref1 ER -